Chock absorber



Patented .lune 2d, i924.

more n. immuni, or cnanniaonnnnw naar e SHOCK ABSORBEE.

application tutti4 aan# e, me. serial no. sessie.'

To-aZZ whom t may concern.'

Be it known that I, LEON F. MALoUrN, a citizen of the UnitedStates, a resident of Claremont, in Sullivan County and Strate o NewjiHampshire, have invented an Iiipovement in Shock Absorbers, of which the following is' a specification.

This ,-'invention relates to that type of shock absorber for .vehicles in which a comparatively free movement is permitted in vone direction, and the movement in the other direction is retarded, such devices being sometimes known as jump preventors, as

.they 'are used to prevent the supported body from bein thrown violently upward by' the recoil ofgt e springs. ,Morespecicallythe I invention relates to that class of devices in which the twornembers' of the device have interposed friction disks for` retarding relative movement' in one direction and la fric- .y free movementinithe opposite direction,

The 'primaryr objects of my invention pro vide an improved and simple arrangement of the friction clutch and disk devices which will permit economicalv manufacturing eX- l *penseand A willireadily enable the employ ment of as many friction disks as /may be considered desirable.

I accomplish these objects by the means shown in theaccompanying drawing vvin f "whichzy f Fig. 1 is a side elevation showing the application of axdevicerembodying my invention to a vehicle. f

Fig. 2 is a; sectional vlew at line 2-2 of Fi 4.y y

gig. 3 is apsectional view at line 3-3 of Fig: 2 ,I ig. e is-,aaplanview i, y

Figs. 5, 6;,andp7`fare detail views of certain friction-members which employ.l

As' shown in the drawin the device comprises arrpter clutch mem er-10, having an me n the disk hasa series of peripheral chambers .ar-:gn `11 inte al therewith,which is adapted "be pivota ly connected to the vehicle axleand an inner clutch member 1,2, said member 10 being constructed in the'form of a ring and said lmember 12 in the form of a fiat disk whichlis rotatable within the ring 10, and fits' the innery periphery thereof. Said and disk are of the samethickness and 14, in which a corresponding series of clutch rolls 16 are located, said rolls being spring pressed into contact with the inner periphery of the ring 10 and being adapted to become wedged etween the same and the bottom of the chambers to prevent relativerotation of the members in one direction and to pernsLV such rotation in the oppposite direction, in a well known manner. The clutch member or disk 12 is integrally formed with, or rigidi secured to a hollow hub or sleeve 18 whic projects from each side thereof, and 'a pair of iron or steel friction plates 20 are rotatabl mounted on said hub at opposite sides of t e disk 12.

Arms 24 are formed integrally with the plates 20, said arms bein rigidly connected or welded to opposite si es of an interposed block 25, in -which an ear 26 is swiveled,

said ear being adapted for connection with l the vehicle body as indicated in Fig. 1. A.

pair of iron friction disks 28 are arran ed on the hub 18 'at opposite'sides of the p ate 20 from disk 12 and are held from rotation relatively to the hubby means of lugs 29 gage the plates 20 in notches 21 formed ,in

the peripheral edge portions thereof, so that rotation of the plates 20 will cause corresponding movement of the disks 32. Sheet iron or steel friction disks 36 are arranged on the opopsite ends of the hub 18 and are held from rotation relatively thereto in the same manner as are the disks 28. To avoid the undesirable effects vwhich are likely to be caused by the rubbing, or friction action of iron on iron, brass washers 22 are preferably placed on the hub 18 between the disk 12 and plates 20, between the plates 20 and disks 28, between plates 32 and disks 28, and between the plates 32 and disks 36. A bolt 40 is extended through 'the hub 18 and a head 4-1 on one end thereof is arranged to hold a spring washer 42 against one of the outer disks 36, anut 43 being threaded on the opposite end ofthe vbolt inv engagement with the other outer rdisk, so that all of said disksand plates ma be'pressed together by a ielding force an the extent of frictions. engagement thereof may be adjusted by means of-said nut. y.

With the above described construction, when the arms 1l and 24C are swung towards each other, as when the vehicie body moves down against the action of its supporting springs, the outer clutch member or ring will merely slide about on the inner clutch member, or disk l2, the other parts remaining istationary with relation to the latter. On the return. movement, said memiobers will clutch, so that they will rotate together, thereby causinrotation of the sleeve, or hub 18, and with it the friction disks 28 and 36. As the intervening plates 2O and 32 are positively connected with the arms 24, they will be held stationary relatively to the inner clutch member or disks 28 and 36, so that the return swinging movement of said arms ll and 2a, as they swing away from each other, will be retarded by the frictional engagemcruof said disks as they' are turned on said plates. The extent to which. this movement is retarded will depend on the force with which the frictional surfaces are pressed together, this force being determined by the position of the nut 43, as previously stated. In this connection is to-be noted that the transversely projecting lugs 33 are adapted to slide in the peripheral notches of the friction plates 2() and that the inwardly extending lugs 29 on the friction disks 28 and 36 are adapted to move in the longitudinally extending slots ofthe hub, so that free transverse movement of the disks and plates is permitted when the nut 43 is tightened or loosened.

The bolt a0 may be provided with a central borefrom one end to receive a lubricant, the chamber thus provided being closed by a screw plu 44, and lubricatin passages being provi ed in the bolt anc ub, so that the frictional surfaces may be kept lubricated. Y

While two bars of iron orsteel friction plates and disks are. shown as provided at each side of the clutch member, it will be apparent that a less or greater number than that shown may be employed, the extent to which the number may be increased being indefinite.

l. In a shock absorber for vehicles, a clutchl comprising a ring member adaptel to be attached to one of two relatively moving parts of a vehicle, a disk member arranged within said ring member, clutching devices intermediate said members permitting free relative rotatable movement thereof in oneldirect'ion, a hub rigid with said disk member and projecting at each side thereof, a friction plate mounted on said hub at each side of said disk member and having means for attachment thereof to the other moving part of the vehicle, a friction disk mounted on the hub at the opposite sides of each plate from said disk member Lacasse y intermediate said members permitting free relative rotatable movement thereof in one direction, a hub rigid with said disk member and projecting from each side thereof, a pair of friction plates mounted on said hub at each side 'of said disk member, ,transversely extending means connecting each pair of plates, an arm rigid with a plate of each pair and having means for attachment with the other moving part of the vehicle, a pair of friction disks mounted on the hub one between each pair of said friction plates and held against rotation relative to the hub and means to hold said plates and disks in frictional engagement.

3. In a shock absorber for vehicles, a, clutch comprising a ring member adapted to be attached to one of tyvo relatively moving parts of a vehicle, a disk member arranged within said ring member, clutching devices intermediate said members permitting free relative rotatable movement thereof in one direction, a hub rigid With said disk member and projecting therefrom at each side thereof, a series of friction plates and friction disks alternately arranged on said yhub at each side of said disk member, said friction plates being connected to each other independently of said disks and arranged for connection with the other moving part of the vehicle, means to connect said friction disks to said hub and means to hold said plates and disks in frictional engagement.

4. In a shock absorber for vehicles, a clutch comprising a ring member adapted to \be attached to one of two relatively moving parts of a vehicle, a disk member arranged within said ring member, clutching devices intermediate said members permitting free relative rotatable movement thereof in one direction, a hub projecting from said disk member and rigid therewith, a series of friction plates and friction disks alternately arranged on saidhub, means to connect said plates with each other and `with the other moving part of the vehicle to cause simultaneous rotation of Said plates' on the hub, means to connect said friction disks to said disk member through the hub and means to hold said disks and plates in frictional engagement.

5. In a shockabsorber for vehicles, a disk member arranged for connection with one of two relatively moving parts of a vehicle,

and having a hub rigid therewith and projecting from opposite sides thereof, two pairs of friction plates arranged `on said hub, one pair at each side of said disk member, means to connect one plate of each pair to the other of said vehicle parts, transversely extending lugs on one plate of each air arranged to engage the corresponding p ate ot' the pair to hold said plates against relative rotary movement, friction disks disposed on the hub, one between each pair of plates and having means to engage the hub lo prevent rotation relative thereto, and means to press said plates into frictional engagement. y 'f G. In a shock absorber for vehicles, adisk member arranged for connection with one of two relatively moving parts of a vehicle, and having a hub rigid therewith and projecting from opposite sides thereof, two pairs of friction plates arranged on said hub, one pair at each side of said disk member, means to connect one plate of each pair to the other of said vehicle parts, a transversely slidable connection between each pair of plates to hold them against relative rotary movement, a friction disk disposed on the hub between each plate and having connecting means with the hub preventing rotary movement and permitting longitudinal movement relative to the hub and adjustable means at the opposite' ends of the hub for pressing said disks and plates into frictional engagement.

In testimonywherof, I have signed my name to this specification.

LEON F. MALOUIN. 

